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Color lineart fast.

Apr 28, 2011, 17:09
Post: #1
Color lineart fast.
I would like to color animal lineart such as wolves and big cats. I know the easy way to make layers, but coloring it is so time consuming. I normally try to color inside the lines and whatnot, but that takes forever.. Is there a way I can color and not worry about going outside the lines?
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Apr 28, 2011, 19:16
Post: #2
RE: Color lineart fast.
(Apr 28, 2011 17:09)Adrian100 Wrote:  I would like to color animal lineart such as wolves and big cats. I know the easy way to make layers, but coloring it is so time consuming. I normally try to color inside the lines and whatnot, but that takes forever.. Is there a way I can color and not worry about going outside the lines?
If you make a selection with the wand, if will stop on the lines (if the lines make fully closed areas). You can then paint blindly, paint will only apply to the selection.

If the lines do not make fully closed areas, duplicate the layer, use the brush/pen to make closed areas, make your selection on that layer, and work on the paint layer.

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Apr 29, 2011, 19:11
Post: #3
RE: Color lineart fast.
This is what I am attempting to color.

http://img339.imageshack.us/i/wolflinear...eless.jpg/

I tried your method, but I don't think I did it right. Is there more then one way to do it?
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Apr 29, 2011, 19:50 (This post was last modified: Apr 29, 2011 19:53 by ofnuts.)
Post: #4
RE: Color lineart fast.
I didn't see that kind of lineart Smile

So:

- put image in RGB mode
- add layer under image
- bucket-fill the whole bottom layer with the color you want(*)
- select to image layer
- with magic wand, click on background (selects everything but the drawing)
- invert selection (selects the drawing)
- Colors>Color to alpha, and use white (or whatever color the sheet is). This makes transparent, inside the selection, the part that are white, showing the bottom layer trough. Lines aren't made as transparent, grey ones get partially colored.

Two minutes tops from the original image:
[attachment=348]

(*)Once you understand how it works, you can off course play with the colors by painting on the bottom layer:

[attachment=349]

That one is 2'30" Smile painted with the mouse, lying on my bed, so it is not a precision job.

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Apr 29, 2011, 21:14
Post: #5
RE: Color lineart fast.
Wow, that looks very nice!

I will follow your guide and let you know how I did. =)
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Apr 29, 2011, 21:23
Post: #6
RE: Color lineart fast.
[Image: art1k.jpg]

Uploaded with ImageShack.us

That was my first attempt. Thank you sooo much for the guide.. Took me maybe 5 minutes to learn from your guide, but now I can color pictures very fast. =D
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Apr 29, 2011, 21:43
Post: #7
RE: Color lineart fast.
Glad you like it. Learn how to use the airbrush for smoother color transitions, this avoids a Frankeinstein look Smile.

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May 1, 2011, 18:44
Post: #8
RE: Color lineart fast.
Just one more question..

How do I change the background color to something other then white? When I try, I get like a thin white line area around the lineart.
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May 1, 2011, 19:34 (This post was last modified: May 1, 2011 19:35 by ofnuts.)
Post: #9
RE: Color lineart fast.
I assume you are selecting the background with the magic wand and then bucket-filling it. The proper way is:

- select background with magic wand. use a rather high threshold to include most of the JPEG artifacts (at least there are some in the wolf image).
- grow the selection by two pixels (now also includes the outside of the drawing).
- Color/Color to alpha will make the background transparent.
- Insert layer below and paint/fill to taste

For this particular image, that had a prior JPEG episode int its life, the Jpeg artifacts may make the results not perfect. You'll find a couple of white spots where the wand selection didn't work. Either you correct them by hand (look for them a 800% zoom after wand selection and shift-click in them to add them), or, before the selection, use the curve tool to transform all values above 200 to 255, this will get rid of most of them.
[attachment=353]

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May 14, 2011, 04:34
Post: #10
RE: Color lineart fast.
For some reason, this method won't work on this line art

[Image: q2Fcd.jpg]

Is there another method to coloring it fast? I've tried a bunch of other line arts as well and it won't work on them. =D
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May 14, 2011, 07:56
Post: #11
RE: Color lineart fast.
Because there are gaps in the outline, so the magic wand also selects the inside. Your options:

1) duplicate the layer, look at at it at 400% zoom and plug the holes, wand-select and get rid of that layer (or make it invisible in case you want to fix things). In this image, using the Generic/Erode filter once also connects everything, so you are lucky.

2) Use the Path tool to make an outline (some work, but not that hard once you get the hang of it), then create the selection from the path and make it a bit fuzzy (feather selection).

3) Mostly if you have a tablet: Use the free select tool to create the outline. You can work piece by piece, save the partial selections to channel, and merge them all in a complete selection in the end, and make that a bit fuzzy. You can also mix two selection mode that way, the scissors for straight lines (no feathering) and the free hand for hairs (with feathering).

Steps 2 or 3 don't need to be perfect, in the hairy areas you will make e a line roughly halfway in the hairs, the selection feathering will take care of the rest.

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